AI Coding & CSE Fundamentals
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🚀 Explore AI, Coding & Computer Science Fundamentals. 💻 Programming • DSA • DBMS • OS • Networks 🤖 AI & Emerging Technologies 🛠️ Projects • Tutorials • Learning Resources 📚 Your freedom to gain knowledge for free.
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Channel AI Coding & CSE Fundamentals (@aicoding_csefundamentals) in the English language segment is an active participant. Currently, the community unites 12 324 subscribers, ranking 10 232 in the Technologies & Applications category and 31 271 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 12 324 subscribers.
According to the latest data from 12 November, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -238 over the last 30 days and by -8 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 10.45%. Within the first 24 hours after publication, content typically collects N/A% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 288 views. Within the first day, a publication typically gains 0 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 11.
- Thematic interests: Content is focused on key topics such as input, string, scanf("%d, array, element.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“🚀 Explore AI, Coding & Computer Science Fundamentals.
💻 Programming • DSA • DBMS • OS • Networks
🤖 AI & Emerging Technologies
🛠️ Projects • Tutorials • Learning Resources
📚 Your freedom to gain knowledge for free.”
Thanks to the high frequency of updates (latest data received on 13 November, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
12 324
Subscribers
-824 hours
-827 days
-23830 days
Posts Archive
Palindrome String Check (No strrev)
#include <stdio.h>
#include <string.h>
int main() {
char str[100];
int i, len, flag = 1;
printf("Enter a string: ");
scanf("%s", str);
len = strlen(str);
for (i = 0; i < len/2; i++) {
if (str[i] != str[len-i-1]) {
flag = 0;
break;
}
}
if (flag) {
printf("%s is a palindrome", str);
} else {
printf("%s is not a palindrome", str);
}
return 0;
}Reverse a String
#include <stdio.h>
#include <string.h>
int main() {
char str[100];
int i, len;
char temp;
printf("Enter a string: ");
scanf("%s", str);
len = strlen(str);
for (i = 0; i < len/2; i++) {
temp = str[i];
str[i] = str[len - i - 1];
str[len - i - 1] = temp;
}
printf("Reversed string: %s\n", str);
return 0;
}Remove Vowels from a String
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
bool isVowel(char c) {
c = tolower(c);
return (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
}
int main() {
char str[100];
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);
str[strcspn(str, "\n")] = 0;
int j = 0;
for (int i = 0; str[i] != '\0'; i++) {
if (!isVowel(str[i])) {
str[j++] = str[i];
}
}
str[j] = '\0';
printf("String after removing vowels: %s\n", str);
return 0;
}Remove Spaces from String
#include <stdio.h>
#include <string.h>
void removeSpaces(char *str) {
int i, j = 0;
for (i = 0; str[i] != '\0'; i++) {
if (str[i] != ' ') {
str[j++] = str[i];
}
}
str[j] = '\0';
}
int main() {
char str[] = " This is a string with spaces. ";
removeSpaces(str);
printf("%s", str);
return 0;
}Toggle Case of String Characters
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main() {
char str[100];
int i;
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);
str[strcspn(str, "\n")] = 0;
for (i = 0; str[i] != '\0'; i++) {
if (islower(str[i])) {
str[i] = toupper(str[i]);
} else if (isupper(str[i])) {
str[i] = tolower(str[i]);
}
}
printf("Toggled string: %s\n", str);
return 0;
}Count Vowels, Consonants, Digits, and Spaces in a String
#include <stdio.h>
#include <string.h>
int main() {
char str[100];
int vowels = 0, consonants = 0, digits = 0, spaces = 0;
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);
for (int i = 0; str[i] != '\0'; i++) {
char ch = str[i];
if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) {
ch = (ch >= 'A' && ch <= 'Z') ? (ch + 32) : ch;
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
vowels++;
} else {
consonants++;
}
} else if (ch >= '0' && ch <= '9') {
digits++;
} else if (ch == ' ') {
spaces++;
}
}
printf("Vowels: %d\n", vowels);
printf("Consonants: %d\n", consonants);
printf("Digits: %d\n", digits);
printf("Spaces: %d\n", spaces);
return 0;
}String Case Conversion
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main() {
char str[100];
int i;
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);
str[strcspn(str, "\n")] = 0;
for (i = 0; str[i] != '\0'; i++) {
if (islower(str[i])) {
str[i] = toupper(str[i]);
} else if (isupper(str[i])) {
str[i] = tolower(str[i]);
}
}
printf("Modified string: %s\n", str);
return 0;
}Compare Two Strings (Without strcmp)
#include <stdio.h>
int main() {
char str1[100], str2[100];
int i = 0, flag = 0;
scanf("%s", str1);
scanf("%s", str2);
while (str1[i] != '\0' || str2[i] != '\0') {
if (str1[i] != str2[i]) {
flag = 1;
break;
}
i++;
}
if (flag == 0 && str1[i] == '\0' && str2[i] == '\0')
printf("Strings are equal");
else
printf("Strings are not equal");
return 0;
}String Concatenation (Without strcat)
#include <stdio.h>
#include <string.h>
int main() {
char str1[100] = "Hello, ";
char str2[] = "World!";
int i, j;
for (i = 0; str1[i] != '\0'; i++);
for (j = 0; str2[j] != '\0'; j++) {
str1[i] = str2[j];
i++;
}
str1[i] = '\0';
printf("%s\n", str1);
return 0;
}Copying Strings
#include <stdio.h>
int main() {
char source[] = "Hello!";
char destination[10];
int i = 0;
while (source[i] != '\0') {
destination[i] = source[i];
i++;
}
destination[i] = '\0';
printf("Copied string: %s\n", destination);
return 0;
}String Length (No strlen)
#include <stdio.h>
int main() {
char str[] = "Hello";
int length = 0;
while (str[length] != '\0') {
length++;
}
printf("Length: %d\n", length);
return 0;
}Input and Print a String
#include <stdio.h>
#include <string.h>
int main() {
char str[100];
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);
str[strcspn(str, "\n")] = 0;
printf("You entered: %s\n", str);
return 0;
}Spiral Matrix Traversal
#include <stdio.h>
int main() {
int rows, cols, i, j;
scanf("%d %d", &rows, &cols);
int matrix[rows][cols];
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
int top = 0, bottom = rows - 1, left = 0, right = cols - 1, dir = 0;
while (top <= bottom && left <= right) {
if (dir == 0) {
for (i = left; i <= right; i++) {
printf("%d ", matrix[top][i]);
}
top++;
} else if (dir == 1) {
for (i = top; i <= bottom; i++) {
printf("%d ", matrix[i][right]);
}
right--;
} else if (dir == 2) {
for (i = right; i >= left; i--) {
printf("%d ", matrix[bottom][i]);
}
bottom--;
} else if (dir == 3) {
for (i = bottom; i >= top; i--) {
printf("%d ", matrix[i][left]);
}
left++;
}
dir = (dir + 1) % 4;
}
printf("\n");
return 0;
}Print Boundary Elements of a Matrix
#include <stdio.h>
int main() {
int rows, cols, i, j;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
int matrix[rows][cols];
printf("Enter the elements of the matrix:\n");
for (i = 0; i < rows; i++)
for (j = 0; j < cols; j++)
scanf("%d", &matrix[i][j]);
printf("Boundary elements are:\n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
if (i == 0 || i == rows - 1 || j == 0 || j == cols - 1)
printf("%d ", matrix[i][j]);
else
printf(" ");
}
printf("\n");
}
return 0;
}Print Lower Triangle of a Matrix
#include <stdio.h>
int main() {
int matrix[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
int rows = 3;
int cols = 3;
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
if (j <= i) {
printf("%d ", matrix[i][j]);
} else {
printf(" ");
}
}
printf("\n");
}
return 0;
}Print Upper Triangle of a Matrix
#include <stdio.h>
int main() {
int rows, cols, matrix[10][10], i, j;
printf("Enter the number of rows: ");
scanf("%d", &rows);
printf("Enter the number of columns: ");
scanf("%d", &cols);
printf("Enter the elements of the matrix:\n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
printf("Upper triangle of the matrix:\n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
if (j >= i) {
printf("%d ", matrix[i][j]);
} else {
printf(" ");
}
}
printf("\n");
}
return 0;
}Diagonal Sum of a Square Matrix
#include <stdio.h>
int main() {
int matrix[10][10];
int rows, cols, i, j, sum = 0;
printf("Enter the number of rows (and columns): ");
scanf("%d", &rows);
cols = rows;
printf("Enter the elements of the matrix:\n");
for (i = 0; i < rows; i++) {
for (j = 0; j < cols; j++) {
scanf("%d", &matrix[i][j]);
}
}
for (i = 0; i < rows; i++) {
sum += matrix[i][i];
}
printf("Diagonal sum: %d\n", sum);
return 0;
}